diff --git a/html/cgi-bin/dns.cgi b/html/cgi-bin/dns.cgi
index f3dd5c7a9..0a34d3fd6 100644
--- a/html/cgi-bin/dns.cgi
+++ b/html/cgi-bin/dns.cgi
@@ -141,6 +141,8 @@ if (($cgiparams{'SERVERS'} eq $Lang::tr{'save'}) || ($cgiparams{'SERVERS'} eq $L
 
 	# Go further if there was no error.
 	if ( ! $errormessage) {
+		# Check if a remark has been entered.
+		$cgiparams{'REMARK'} = &Header::cleanhtml($cgiparams{'REMARK'});
 
 		my %dns_servers = ();
 		my $id;